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| Use of Fractional thermolysis on face |
Fractional thermolysis is a comparatively new skin rejuvenation treatment, introduced in 2004. Fractional thermolysis, often known as fractional laser resurfacing, makes use of micro beams of light energy to improve the appearance of skin.
Fractional thermolysis lasers are superior to the older ablative laser resurfacing treatments. For example, the carbon dioxide laser removed all the epidermis in the treatment site & could cause pain, bruising, infections, inflammation & hypopigmentation (loss of skin colour).
What does fractional thermolysis treat?
Fractional thermolysis has been used to successfully treat:
v facial lines
v wrinkles
v acne scars
v traumatic scars such as burn scars & keloids
v sun damage
v brown spots
v stretch marks
v tone & texture of skin
How does fractional thermolysis work?
Fractional thermolysis works directly on collagen. Collagen is the fibrous connective tissue in skin, & is the main part of the skin's supporting structures. Skin loses collagen over time. This means aging skin is not as well supported as young skin. Wrinkles, lines, & folds are caused by insufficient collagen.
The laser travels through the epidermis & heats minute areas of the dermis. This creates injury patterns in the skin - known as microthermal zones. time injured, the skin begins a rapid technique of repair, known as microscopic epidermal necrotic debris (MEND). This rapid healing is helped by the surrounding untreated, undamaged skin.
Fractional thermolysis sends micro beams of light energy with pinpoint accuracy to the treatment area. It affects the targeted area only, because the laser can be exactly directed.
There is a lot of fractional thermolysis devices on the market, with different intensity & injury patterns. There is types of fractional thermolysis.
Healing these thermal injuries promotes collagen synthesis, improving the tone & texture of the skin. It takes about or months to synthesize collagen, but when the new collagen is in place, the skin is firmer & tighter.
Ablative
Devices used in ablative treatments use a high temperature. They deliver laser beams in to the deep dermis. These devices could use highly modified carbon dioxide or Erbium YAG lasers. This is the most intense treatment.
Ablative devices include the Active FX & the Fraxel RePair.
Depending on type of treatment, pain relief or even anesthesia may be needed.
Recovery time can be 2-4 weeks.
Nonablative
Nonablative devices leave the surface of the skin intact. Nonablative treatments direct laser energy in to the dermis through pixilated columns or an array of lenses.
Nonablative devices include the Fraxel & the Affirm lasers. Fraxel produced the first fractional thermolysis tool.
These devices cause minimal pain, & topical anesthetics can help.
Recovery time for edema & erythema can be 48 hours. It is important to let the skin regenerate before exposing it to the sun, or the new skin could generate hyperpigmentation.
4 to 6 treatments are usually needed, spaced about weeks apart.
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